Improvement in cutter-heads



M. T. BOULT.

CUTTER-HEAD.

No. 188,771. Patented March 27,1877.

LW P HID t'.

I UNITED S'rrrrnsy PATENT @Erica MYRON BOULT, OF BATTLE CREEK, MICHIGAN.

IMPROVEMENT IN CUTTER-HEADS.

Specication forming part of Letters Patent N o. l 88,771, dated March27, 1877; application filed December 27, 1876.

ATo all whom it may concern Be it known that I, MYRON T. BoULT, of

Battle Greek, in the county of Calhoun and State of Michigan, haveinvented an Improvement in Gutter-Heads and do hereby declare that thefollowing is such a full, clear, and exact description thereof as willenable others skilled in the art to which it pertains to constructand'use the same, reference being had to the accompanying drawings,forming apart of this specification, and to the letters of referencemarked thereon, similar letters indicating corresponding parts in thedii'erent iigures.

My invention relates to a cutter made of solid steel, having doublecutting-edges, or edges which will cut while the tool' is revolving ineither direction, right or left, and which annexed drawings, in which-`Figure l is a perspective view ot' the cutter; Fig. 2, a longitudinalsection; Fig. 3, an end View, and Fig. 4 a modification of the same. l Arepresents the cutter, made of a single solid piece of steel, turned tosuit any desired, configuration of molding, and having doublecutting-edges, a and b,vwhich allow it to cut while revolving in eitherdirection, right or left. This method of construction is rendered.necessary on account of the tool being made reversible in thetool-stock ormandrel, and is of great service in allowing the tool tocut with the grain of the wood at all times, as, by

applying a reversing motion to the mandrel, the cutting or rotatingmovement ot' the tool may always be made to correspond with thevdirection of the grain ot' the wood acted upon, thus insuring smoothwork. The method elnployed by me to give the .proper form to the'periphery of the tool, in order to insure per- In forming' the cutter astem or shank, B, Y

is produced at both ends, either of which may be inserted in the toolstock or mandrel, the opposite end serving as a guide to the work.

These stems are turned from centers in the ordinary manner, and aretherefore concentric to the periphery of the cutter and circular insection, so as to lit them for entering the socket of the tool-stock, orto act as guides for the tool.

Having thus described my invention, I claim as new,and desire to secureby Letters Patent ot' the United States, the following:

A molding-cutter constructed with a shank or stem on each end, eitherot' which may be used to hold the cutter or guide the lumber to bemolded, and provided with double cuttingedges, as and for the purposespecified.

In testimony whereof' l have hereunto afxed my signature this 31st dayot' October, 1876, in presence of two witnesses.

MYRON T. BOULT.

Witnesses:

H. PHILLIPS, Jr., I. HAYs CARSON.

